80072170 has 16 divisors (see below), whose sum is σ = 144737280. Its totient is φ = 31893904.

The previous prime is 80072089. The next prime is 80072183. The reversal of 80072170 is 7127008.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14362 + ... + 19141.

It is an arithmetic number, because the mean of its divisors is an integer number (9046080).

Almost surely, 2^80072170 is an apocalyptic number.

80072170 is a deficient number, since it is larger than the sum of its proper divisors (64665110).

80072170 is a wasteful number, since it uses less digits than its factorization.

80072170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33749.

The product of its (nonzero) digits is 784, while the sum is 25.

The square root of 80072170 is about 8948.3054261687. The cubic root of 80072170 is about 431.0164703557.

Adding to 80072170 its reverse (7127008), we get a palindrome (87199178).

The spelling of 80072170 in words is "eighty million, seventy-two thousand, one hundred seventy".